GATINEAU, Que. — Sen. Patrick Brazeau formally entered a not guilty plea to charges of assault and sexual assault Tuesday as court documents revealed the alleged victim accused the senator of violently pushing her and touching her in a sexually aggressive way.

Brazeau, 38, was charged earlier this month after a 911 call brought police to his home in Gatineau, Que., just across the Ottawa river from the national capital.

According to documents, Brazeau and his accuser had an argument over aboriginal issues that started on the night of Feb. 6 and continued the next morning.

The alleged victim said the dispute turned violent after the senator ordered her to leave her house. The victim said she was pushed by Brazeau hard enough to break the handrail of the staircase she was holding.

When the alleged victim called 911, she said she had suffered bruises and Brazeau was holed up in a room upstairs, the documents say.

Later, after police arrived, the alleged victim told them Brazeau grabbed one of her breasts in an aggressive way and brought down her pants, breaking the button and zipper, according to the documents. She also alleged he put his hand around her neck and hit her in the arm with his fists. The complainant also told police that Brazeau swore at her in French and English, the records say.

A police search warrant was issued to find a bra, a shirt and a trouser button in Brazeau’s home torn off in the alleged altercation.

Before his two-week Twitter hiatus Brazeau was quite active on social media, particularly in the hours before his arrests when he sent more than 60 Tweets, many of them attacks on a CTV story on his financial dealings.

Brazeau is next due to appear in court on March 22.

He had previously been placed on $1,000 bail under orders not to have a firearm or be within 150 metres of the alleged victim.